How I Built a Simple Shell in C – A Beginner's Guide to System Programming (2/3)

Part 2 of the custom shell project focuses on parsing user input dynamically in C. The parser() function splits commands into arguments using strtok() and dynamically allocates memory for the argument array using malloc() and realloc() to handle arbitrary command lengths. The #ifndef PARSER_H header guard prevents multiple inclusions. The free_args() function is used for memory cleanup after command execution. The parser is integrated into the shell's main loop, allowing flexible command handling and efficient memory management. The approach prevents buffer overflows and ensures dynamic parsing of commands. The next part will cover command execution using system calls and function pointers.